Definitely friends

Rick didn't need any time to make this decision. Alternative one: piss off the pretty girl who'd offered him a place to stay, offered to help with his plan to destroy the bio-DNA executives, and who'd just given him one of the best blowjobs he'd ever had; or alternative two: make her happy, get help with his revenge, not have to sleep in his car any more, and get frequent blowjobs and sex.

"Of course we're friends," he said. He didn't say anything about exclusivity. For one thing, Kat hadn't suggested anything of the kind and for another, his plans almost certainly involved some sleeping around... for one thing with bio-DNA executives' wives, daughters, and especially mistresses.

"I'm glad. Uh, you're probably wondering why I didn't invite you to move in with me."

Well, the idea had crossed his mind.

"I sort of have a boyfriend. I told him I was going to Oklahoma with a girlfriend."

Okay, so the non-exclusivity went both ways.

"No problem," Rick said. "We can be friends or friends with benefits, whatever you feel comfortable with."

"I sort of like the benefits."

He looked at her. Her spiky hair was tousled where he'd clenched it during his orgasm, his cum still clung in globs to her cheeks and ran down her neck and between her tits.

He brushed a knuckle across the hardened nipple jutting out from her top. "Yeah, I like the benefits, too. Way I see it, nothing we do interferes with the two of you. We'll be buds, hang out together when we both want, and if someday one of us wants to change the relationship, we'll figure out how to move from there. Until then, no jealousy, no clinginess, just friends... with benefits."

She wiped her face off before kissing him... and nearly causing an accident when she added some tongue. "You have a deal, buddy."